def main():
parse = argparse.ArgumentParser()
# ---------- environment setting: which gpu -------
parse.add_argument('-gpu',
'--gpu',
type=str,
default='0',
help='which gpu to use: 0 or 1')
parse.add_argument('-folder_name',
'--folder_name',
type=str,
default='datasets/citibike-data/data/')
parse.add_argument('-output_folder_name',
'--output_folder_name',
type=str,
default='output/citibike-data/data/')
# ---------- input/output settings -------
parse.add_argument('-input_steps',
'--input_steps',
type=int,
default=6,
help='number of input steps')
# ---------- model ----------
parse.add_argument('-model',
'--model',
type=str,
default='GCN',
help='model: DyST, GCN, AttGCN')
parse.add_argument('-num_layers',
'--num_layers',
type=int,
default=2,
help='number of layers in model')
parse.add_argument('-num_units',
'--num_units',
type=int,
default=64,
help='dim of hidden states')
parse.add_argument('-trained_adj_mx',
'--trained_adj_mx',
type=int,
default=0,
help='if training adjacent matrix')
parse.add_argument('-filter_type',
'--filter_type',
type=str,
default='dual_random_walk',
help='laplacian, random_walk, or dual_random_walk')
parse.add_argument('-delta',
'--delta',
type=int,
default=1e7,
help='delta to calculate rescaled weighted matrix')
parse.add_argument('-epsilon',
'--epsilon',
type=float,
default=0.8,
help='epsilon to calculate rescaled weighted matrix')
#
parse.add_argument(
'-dy_temporal',
'--dy_temporal',
type=int,
default=0,
help='whether to use temporal attention module before output layer')
parse.add_argument(
'-multi_loss',
'--multi_loss',
type=int,
default=0,
help='whether to only consider last prediction into loss function.')
parse.add_argument('-att_units',
'--att_units',
type=int,
default=64,
help='dim of hidden states')
#
parse.add_argument(
'-dy_adj',
'--dy_adj',
type=int,
default=1,
help=
'whether to use dynamic adjacent matrix for lower feature extraction layer'
)
parse.add_argument(
'-dy_filter',
'--dy_filter',
type=int,
default=0,
help='whether to use dynamic filter generate region-specific filter ')
#parse.add_argument('-att_dynamic_adj', '--att_dynamic_adj', type=int, default=1, help='whether to use dynamic adjacent matrix in attention parts')
parse.add_argument('-model_save',
'--model_save',
type=str,
default='gcn',
help='folder name to save model')
parse.add_argument('-pretrained_model',
'--pretrained_model_path',
type=str,
default=None,
help='path to the pretrained model')
# ---------- params for CNN ------------
parse.add_argument('-num_filters',
'--num_filters',
type=int,
default=32,
help='number of filters in CNN')
parse.add_argument('-pooling_units',
'--pooling_units',
type=int,
default=64,
help='number of pooling units')
parse.add_argument('-dropout_keep_prob',
'--dropout_keep_prob',
type=float,
default=0.5,
help='keep probability in dropout layer')
# ---------- training parameters --------
parse.add_argument('-n_epochs',
'--n_epochs',
type=int,
default=20,
help='number of epochs')
parse.add_argument('-batch_size',
'--batch_size',
type=int,
default=8,
help='batch size for training')
parse.add_argument('-show_batches',
'--show_batches',
type=int,
default=100,
help='show how many batches have been processed.')
parse.add_argument('-lr',
'--learning_rate',
type=float,
default=0.0002,
help='learning rate')
parse.add_argument('-update_rule',
'--update_rule',
type=str,
default='adam',
help='update rule')
# ---------- train or predict -------
parse.add_argument('-train',
'--train',
type=int,
default=1,
help='whether to train')
parse.add_argument('-test', '--test', type=int, default=0, help='if test')
#
args = parse.parse_args()
os.environ['CUDA_VISIBLE_DEVICES'] = args.gpu
print('load train, test data...')
# train: 20140401 - 20140831
# validate: 20140901 - 20140910
# test: 20140911 - 20140930
split = [3672, 240, 480]
#split = [3912, 480]
data, train_data, val_data, test_data = load_npy_data(filename=[
args.folder_name + 'd_station.npy', args.folder_name + 'p_station.npy'
],
split=split)
# data: [num, station_num, 2]
#f_data, train_f_data, val_f_data, test_f_data = load_pkl_data(args.folder_name + 'f_data_list.pkl', split=split)
f_data, train_f_data, val_f_data, test_f_data = load_npy_data(
filename=[args.folder_name + 'citibike_flow_data.npy'], split=split)
print(len(f_data))
print('preprocess train/val/test flow data...')
#f_preprocessing = StandardScaler()
f_preprocessing = MinMaxNormalization01()
f_preprocessing.fit(train_f_data)
train_f_data = f_preprocessing.transform(train_f_data)
if val_f_data is not None:
val_f_data = f_preprocessing.transform(val_f_data)
test_f_data = f_preprocessing.transform(test_f_data)
print('preprocess train/val/test data...')
pre_process = MinMaxNormalization01()
#pre_process = StandardScaler()
pre_process.fit(train_data)
train_data = pre_process.transform(train_data)
if val_data is not None:
val_data = pre_process.transform(val_data)
test_data = pre_process.transform(test_data)
#
num_station = data.shape[1]
print('number of station: %d' % num_station)
#
train_loader = DataLoader_graph(train_data,
train_f_data,
args.input_steps,
flow_format='identity')
if val_data is not None:
val_loader = DataLoader_graph(val_data,
val_f_data,
args.input_steps,
flow_format='identity')
else:
val_loader = None
test_loader = DataLoader_graph(test_data,
test_f_data,
args.input_steps,
flow_format='identity')
# f_adj_mx = None
if os.path.isfile(args.folder_name + 'f_adj_mx.npy'):
f_adj_mx = np.load(args.folder_name + 'f_adj_mx.npy')
else:
f_adj_mx = train_loader.get_flow_adj_mx()
np.save(args.folder_name + 'f_adj_mx.npy', f_adj_mx)
#
#
if args.filter_type == 'laplacian':
w = np.load(args.folder_name + 'w.npy')
# w = np.array(w, dtype=np.float32)
W = get_rescaled_W(w, delta=args.delta, epsilon=args.epsilon)
# Calculate graph kernel
L = scaled_laplacian(W)
#
f_adj_mx = L
if args.model == 'FC_LSTM':
model = FC_LSTM(num_station,
args.input_steps,
num_layers=args.num_layers,
num_units=args.num_units,
batch_size=args.batch_size)
if args.model == 'FC_GRU':
model = FC_GRU(num_station,
args.input_steps,
num_layers=args.num_layers,
num_units=args.num_units,
batch_size=args.batch_size)
if args.model == 'GCN':
model = GCN(num_station,
args.input_steps,
num_layers=args.num_layers,
num_units=args.num_units,
dy_adj=args.dy_adj,
dy_filter=args.dy_filter,
f_adj_mx=f_adj_mx,
trained_adj_mx=args.trained_adj_mx,
filter_type=args.filter_type,
batch_size=args.batch_size)
if args.model == 'flow_GCN':
model = flow_GCN(num_station,
args.input_steps,
num_layers=args.num_layers,
num_units=args.num_units,
f_adj_mx=f_adj_mx,
trained_adj_mx=args.trained_adj_mx,
filter_type=args.filter_type,
batch_size=args.batch_size)
if args.model == 'Coupled_GCN':
model = Coupled_GCN(num_station,
args.input_steps,
num_layers=args.num_layers,
num_units=args.num_units,
f_adj_mx=f_adj_mx,
trained_adj_mx=args.trained_adj_mx,
filter_type=args.filter_type,
dy_temporal=args.dy_temporal,
att_units=args.att_units,
multi_loss=args.multi_loss,
batch_size=args.batch_size)
#
model_path = os.path.join(args.output_folder_name, 'model_save',
args.model_save)
if not os.path.exists(model_path):
os.makedirs(model_path)
#model_path = os.path.join(args.folder_name, 'model_save', args.model_save)
solver = ModelSolver(
model,
train_loader,
val_loader,
test_loader,
pre_process,
batch_size=args.batch_size,
show_batches=args.show_batches,
n_epochs=args.n_epochs,
pretrained_model=args.pretrained_model_path,
update_rule=args.update_rule,
learning_rate=args.learning_rate,
model_path=model_path,
)
results_path = os.path.join(model_path, 'results')
if not os.path.exists(results_path):
os.makedirs(results_path)
if args.train:
print('==================== begin training ======================')
test_target, test_prediction = solver.train(
os.path.join(model_path, 'out'))
np.save(os.path.join(results_path, 'test_target.npy'), test_target)
np.save(os.path.join(results_path, 'test_prediction.npy'),
test_prediction)
if args.test:
print('==================== begin test ==========================')
test_target, test_prediction = solver.test()
np.save(os.path.join(results_path, 'test_target.npy'), test_target)
np.save(os.path.join(results_path, 'test_prediction.npy'),
test_prediction)
def main():
parse = argparse.ArgumentParser()
# ---------- environment setting: which gpu -------
parse.add_argument('-gpu',
'--gpu',
type=str,
default='0',
help='which gpu to use: 0 or 1')
parse.add_argument('-folder_name',
'--folder_name',
type=str,
default='datasets/didi-data/data/')
parse.add_argument('-output_folder_name',
'--output_folder_name',
type=str,
default='output/didi-data/data/')
# ---------- input/output settings -------
parse.add_argument('-input_steps',
'--input_steps',
type=int,
default=6,
help='number of input steps')
# ---------- model ----------
parse.add_argument('-model',
'--model',
type=str,
default='GCN',
help='model: GCN, ConvLSTM, flow_ConvLSTM')
parse.add_argument('-num_layers',
'--num_layers',
type=int,
default=2,
help='number of layers in model')
parse.add_argument('-num_units',
'--num_units',
type=int,
default=64,
help='dim of hidden states')
parse.add_argument('-kernel_size',
'--kernel_size',
type=int,
default=3,
help='kernel size in convolutional operations')
#
parse.add_argument(
'-dy_adj',
'--dy_adj',
type=int,
default=1,
help=
'whether to use dynamic adjacent matrix for lower feature extraction layer'
)
parse.add_argument(
'-dy_filter',
'--dy_filter',
type=int,
default=0,
help='whether to use dynamic filter generate region-specific filter ')
parse.add_argument(
'-att_dynamic_adj',
'--att_dynamic_adj',
type=int,
default=0,
help='whether to use dynamic adjacent matrix in attention parts')
#
parse.add_argument('-model_save',
'--model_save',
type=str,
default='gcn',
help='folder name to save model')
parse.add_argument('-pretrained_model',
'--pretrained_model_path',
type=str,
default=None,
help='path to the pretrained model')
# ---------- params for CNN ------------
parse.add_argument('-num_filters',
'--num_filters',
type=int,
default=32,
help='number of filters in CNN')
parse.add_argument('-pooling_units',
'--pooling_units',
type=int,
default=64,
help='number of pooling units')
parse.add_argument('-dropout_keep_prob',
'--dropout_keep_prob',
type=float,
default=0.5,
help='keep probability in dropout layer')
# ---------- training parameters --------
parse.add_argument('-n_epochs',
'--n_epochs',
type=int,
default=20,
help='number of epochs')
parse.add_argument('-batch_size',
'--batch_size',
type=int,
default=8,
help='batch size for training')
parse.add_argument('-show_batches',
'--show_batches',
type=int,
default=100,
help='show how many batches have been processed.')
parse.add_argument('-lr',
'--learning_rate',
type=float,
default=0.0002,
help='learning rate')
parse.add_argument('-update_rule',
'--update_rule',
type=str,
default='adam',
help='update rule')
# ---------- train or predict -------
parse.add_argument('-train',
'--train',
type=int,
default=1,
help='whether to train')
parse.add_argument('-test', '--test', type=int, default=0, help='if test')
#
args = parse.parse_args()
os.environ['CUDA_VISIBLE_DEVICES'] = args.gpu
print('load train, test data...')
#
# train: 20161101 - 20161125
# validate: 20161126 - 20161127
# test: 20161128 - 20161130
split = [2400, 192, 288]
data, train_data, val_data, test_data = load_npy_data(
filename=[args.folder_name + 'cd_didi_data.npy'], split=split)
# data: [num, station_num, 2]
print(data.shape)
#
if 'GCN' in args.model or 'FC' in args.model:
dataloader = DataLoader_graph
else:
data = np.reshape(data, (-1, 20, 20, 2))
train_data = np.reshape(train_data, (-1, 20, 20, 2))
val_data = np.reshape(val_data, (-1, 20, 20, 2))
test_data = np.reshape(test_data, (-1, 20, 20, 2))
# data: [num, height, width, 2]
print(data.shape)
#
dataloader = DataLoader_map
#
map_size = data.shape[1:-1]
input_dim = data.shape[-1]
num_station = np.prod(data.shape[1:-1])
#
f_data, train_f_data, val_f_data, test_f_data = load_npy_data(
[args.folder_name + 'cd_didi_flow_in.npy'], split=split)
print(len(f_data))
print('preprocess train/val/test flow data...')
#f_preprocessing = StandardScaler()
f_preprocessing = MinMaxNormalization01()
f_preprocessing.fit(train_f_data)
train_f_data = f_preprocessing.transform(train_f_data)
val_f_data = f_preprocessing.transform(val_f_data)
test_f_data = f_preprocessing.transform(test_f_data)
print('preprocess train/val/test data...')
# pre_process = StandardScaler()
pre_process = MinMaxNormalization01()
pre_process.fit(train_data)
train_data = pre_process.transform(train_data)
val_data = pre_process.transform(val_data)
test_data = pre_process.transform(test_data)
#
print('number of station: %d' % num_station)
#
train_loader = dataloader(train_data,
train_f_data,
args.input_steps,
flow_format='identity')
val_loader = dataloader(val_data,
val_f_data,
args.input_steps,
flow_format='identity')
test_loader = dataloader(test_data,
test_f_data,
args.input_steps,
flow_format='identity')
# f_adj_mx = None
if os.path.isfile(args.folder_name + 'f_adj_mx.npy'):
f_adj_mx = np.load(args.folder_name + 'f_adj_mx.npy')
else:
f_adj_mx = train_loader.get_flow_adj_mx()
np.save(args.folder_name + 'f_adj_mx.npy', f_adj_mx)
#
# if args.model == 'FC_LSTM':
# model = FC_LSTM(num_station, args.input_steps,
# num_layers=args.num_layers, num_units=args.num_units,
# batch_size=args.batch_size)
if args.model == 'FC_GRU':
model = FC_GRU(num_station,
args.input_steps,
num_layers=args.num_layers,
num_units=args.num_units,
batch_size=args.batch_size)
if args.model == 'GCN':
model = GCN(num_station,
args.input_steps,
num_layers=args.num_layers,
num_units=args.num_units,
dy_adj=args.dy_adj,
dy_filter=args.dy_filter,
f_adj_mx=f_adj_mx,
batch_size=args.batch_size)
if args.model == 'ConvGRU':
model = ConvGRU(input_shape=[map_size[0], map_size[1], input_dim],
input_steps=args.input_steps,
num_layers=args.num_layers,
num_units=args.num_units,
kernel_shape=[args.kernel_size, args.kernel_size],
batch_size=args.batch_size)
# if args.model == 'flow_ConvGRU':
# model = flow_ConvGRU(input_shape=[20, 20, input_dim], input_steps=args.input_steps,
# num_layers=args.num_layers, num_units=args.num_units, kernel_shape=[args.kernel_size, args.kernel_size],
# f_adj_mx=f_adj_mx,
# batch_size=args.batch_size)
if args.model == 'Coupled_ConvGRU':
model = CoupledConvGRU(
input_shape=[20, 20, input_dim],
input_steps=args.input_steps,
num_layers=args.num_layers,
num_units=args.num_units,
kernel_shape=[args.kernel_size, args.kernel_size],
batch_size=args.batch_size)
##
# flow_ConvGRU_2 is Stack_ConvGRU with 2 conv layers.
if args.model == 'flow_ConvGRU_2':
model = flow_ConvGRU_2(
input_shape=[20, 20, input_dim],
input_steps=args.input_steps,
num_layers=args.num_layers,
num_units=args.num_units,
kernel_shape=[args.kernel_size, args.kernel_size],
f_adj_mx=f_adj_mx,
batch_size=args.batch_size)
if args.model == 'Stack_ConvGRU':
model = Stack_ConvGRU(
input_shape=[20, 20, input_dim],
input_steps=args.input_steps,
num_layers=args.num_layers,
num_units=args.num_units,
kernel_shape=[args.kernel_size, args.kernel_size],
f_adj_mx=f_adj_mx,
batch_size=args.batch_size)
#
model_path = os.path.join(args.output_folder_name, 'model_save',
args.model_save)
if not os.path.exists(model_path):
os.makedirs(model_path)
#model_path = os.path.join(args.folder_name, 'model_save', args.model_save)
solver = ModelSolver(
model,
train_loader,
val_loader,
test_loader,
pre_process,
batch_size=args.batch_size,
show_batches=args.show_batches,
n_epochs=args.n_epochs,
pretrained_model=args.pretrained_model_path,
update_rule=args.update_rule,
learning_rate=args.learning_rate,
model_path=model_path,
)
results_path = os.path.join(model_path, 'results')
if not os.path.exists(results_path):
os.makedirs(results_path)
if args.train:
print('==================== begin training ======================')
test_target, test_prediction = solver.train(
os.path.join(model_path, 'out'))
np.save(os.path.join(results_path, 'test_target.npy'), test_target)
np.save(os.path.join(results_path, 'test_prediction.npy'),
test_prediction)
if args.test:
print('==================== begin test ==========================')
test_target, test_prediction = solver.test()
np.save(os.path.join(results_path, 'test_target.npy'), test_target)
np.save(os.path.join(results_path, 'test_prediction.npy'),
test_prediction)